Feasibility and safety of 7F sheathless guiding catheter during transradial coronary intervention

Abstract

In our multicenter study of 116 consecutive patients, using 7F sheathless guiding catheter to perform TRI is associated with a high procedural success (95%) and a low 30-day RAO rate (2.5%).

Severe catheter kinking and entrapment during transradial coronary angiography: Percutaneous retrieval using a sheathless guide catheter

“…Surprisingly, the sheathless guide catheter could enter the radial artery in a smooth and pain‐free manner and postprocedural Doppler ultrasound of the radial artery was unremarkable. This is in line with previous reports on the feasibility of inserting a 7 Fr guide catheter over a 5 Fr diagnostic catheter as a “modified” sheathless technique . Therefore, we can assume that standard nonhydrophilic guide catheters could also offer a solution to remove kinked catheters.…”

Comparison of a Sheathless Transradial Access With Looping Technique and Transbrachial Access for Carotid Artery Stenting

“…The reported rate of radial artery occlusion in patients undergoing sheathless TRA for complex coronary artery disease was 2.5% 16 ; additionally, the study also suggested that elevated serum creatinine and peripheral artery occlusion were more likely to be associated with radial artery occlusion when using a 7-F sheathless approach. 16 In our study of the sheathless TRA technique in chronically occluded coronary arteries, the incidence of radial artery occlusion was 4.2% at 1 year. 17 In the current study of the sheathless TRA for CAS, the duplex-documented rate was 9%, probably related to more device manipulation during the procedure.…”

“Combo” technique for the use of 7F guide catheter system during transradial approach

“…We have used standard available equipment to fashion an inner dilator for standard guide catheter and prepared a modified mother‐and‐child system, which should help preventing RA injury, perforation, hematoma and local pain by eliminating “razor effect” . We have also used a 7F introducer sheath with its minimal entry inside the RA lumen to create a virtual sheathless guide system which should help reducing RA spasm and RA occlusion by minimizing the segment of mis‐match between RA and introducer sheath . Outer diameters (OD) of 7F guide catheters from different manufacturers i.e.…”